Run Selection Mechanism

A run selection mechanism for selectively directing the flow of particulate material from an air cart, comprising:

• a particulate meter for selectively metering the particulate material;
• a chute for receiving the metered particulate, the chute having an input and an output;
• a first primary conduit having an input communicating with the chute and an output communicating with a first pneumatic primary run;
• a second primary conduit having an input communicating with the chute and an output communicating with a second pneumatic primary run;
• and
• a selector movable between:
• a calibration position wherein the particulate material flows from the particulate meter to the output of the chute;
• a first primary position wherein the particulate material flows from the particulate meter to the output of the first primary conduit;
• and
• a second primary position wherein the particulate material flows from the particulate meter to the output of the second primary conduit.